Slide by is a term used to describe the passing of time, usually in a gradual or subtle manner. The crossword solution for this term is ELAPSE, which means to pass slowly or gradually. This term is often used to describe the passing of time, such as the elapsing of a day or the elapsing of a year. It can also be used to describe the passing of a moment or an event. In either case, it implies that time has passed without much notice or attention.